@article{SAF_1977-1978____A23_0,
     author = {Saphar, P.},
     title = {Sur les sous-espaces des espaces de {Banach} \`a base inconditionnelle, d'apr\`es {Feder}},
     journal = {S\'eminaire Maurey-Schwartz},
     note = {talk:15},
     pages = {1--5},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1977-1978},
     zbl = {0385.46007},
     language = {fr},
     url = {http://archive.numdam.org/item/SAF_1977-1978____A23_0/}
}